Pith Number

pith:TWK5RT2T

pith:2015:TWK5RT2TAB7SLD6VEA43JUSWB5

not attested not anchored not stored refs pending

A note on tame/compatible almost complex structures on four-dimensional Lie algebras

Andres Cubas, Tedi Draghici

arxiv:1503.05963 v1 · 2015-03-19 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TWK5RT2TAB7SLD6VEA43JUSWB5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:25:01.375022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d95d8cf53007f258fd52039b4d2560f68ce216628a979346cbe7eb4ee57a7e5

Aliases

arxiv: 1503.05963 · arxiv_version: 1503.05963v1 · doi: 10.48550/arxiv.1503.05963 · pith_short_12: TWK5RT2TAB7S · pith_short_16: TWK5RT2TAB7SLD6V · pith_short_8: TWK5RT2T

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/TWK5RT2TAB7SLD6VEA43JUSWB5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9d95d8cf53007f258fd52039b4d2560f68ce216628a979346cbe7eb4ee57a7e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3173031ed799c5285563e20eafea6c8263b86b89d9dc84c9613009cc9e92278",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-03-19T22:58:57Z",
    "title_canon_sha256": "dcca97d1393cdcca3e5567e9b773712887f730ebfd0cdfe7b9410f9cf6a44db9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05963",
    "kind": "arxiv",
    "version": 1
  }
}